html, body {
    margin: 0;
    width: 100%;
    height: 100%;
}

ul a {
    cursor: pointer;
}

/*内容也 css*/

.value-page-main {
    height: 100%;
}

.value-page-content {
    width: 100%;
    height: 100%;
}

.value-page-content iframe {
    position: absolute;
    top: 50px;
    border: none;
    width: 100%;
    bottom: 0;
}


